Hey Andrew, could you update your script to work with CS6? I just recently did a tutorial that uses your script, so you'll be having a lot of people checking it out! Thanks!
Adding CS6/CC compatibility involves a complete plugin re-write since Adobe dropped support for PixelBender in CS6. It is defintiely something we are planning on doing but it just takes longer than usual. Thanks for your patience.
You are correct in assuming that it doesn't work for CC at the moment. YY_UVmapper is next on my list for a CS6 and CC compatibility update. In short: I am working on it.